登录
英语单词“isotope”的意思是同位素。读音为：英 [aɪˈsəʊtəʊp] 美 [aɪˈsoʊtoʊp]。例句如下：
1. The two atoms have the same number of protons but different numbers of neutrons, so they are two different isotopes of the same element. 这两个原子有相同的质子数，但中子数不同，所以它们是同一元素的两种不同的同位素。
2. The use of isotopes in medicine is a rapidly growing field. 在医学上使用同位素是一个迅速发展的领域。
3. The most common isotope of carbon is carbon-12. 碳元素中最常见的同位素是碳-12。
4. The two isotopes of uranium have very different half- lives. 这两种铀同位素半衰期差别很大。
5. The two isotopes of plutonium have very different half- lives. 钚有两种同位素，它们的半衰期差别很大。
6. The neutron has three stable isotopes: 1 2H, 1 3H and 1 4He. 中子有三个稳定的同位素：2H，3H和4He。
7. The most common isotope of oxygen is oxygen-16. 氧元素中最常见的同位素是氧-16。
8. The ratio of the two stable isotopes of carbon in the atmosphere is a very important indicator of the amount of carbon dioxide being released into the air by human activities. 大气中两种稳定同位素碳的比例是人类活动向空气中释放二氧化碳数量的一个非常重要的指标。
9. They may have slightly different masses, which is significant for scientific research and laboratory analysis because it can affect the rate of radioactive decay. 它们的质量可能略有不同，这对于科学研究和分析实验室来说很重要，因为这会影响放射性衰减的速度。
10. The most common isotope of nitrogen is nitrogen-14. 氮元素中最常见的同位素是氮-14。
微信扫一扫